An event-triggered optimal cooperative guidance law for simultaneous attacks with impact angle constraints

This article proposes a multimissile cooperative guidance law for simultaneous attacks with impact angle constraints based on an event-triggered strategy. The guidance law has two parts. One part is derived from optimal control to satisfy impact angle constraints, and the other is a cooperative term to perform simultaneous attacks. An event-triggered strategy is introduced to reduce communication frequency and save energy. The consensus is proved by the Lyapunov theory. Efficacy of the proposed guidance law is verified by numerical simulations.